keyboard-events

问题 I'm trying to hide the footer of my Ionic 3 app when the keyboard is open, i've followed the steps found on official documentation and also on this question's accepted answer: Hide tabs on keyboard open I've correctly installed the keyboard plugin and imported it in app.module.ts, i have this code in app.component.ts: this.platform.ready().then(() => { this.keyboard.onKeyboardShow().subscribe(() => { document.body.classList.add('keyboard-is-open'); }); this.keyboard.onKeyboardHide().subscribe

问题 adb shell input text "&" doesn't work, nor does adb shell input keyevent KEYCODE_AMPERSAND . Related to question 7789826. 回答1: Try: adb shell input text "\&" 回答2: For anyone stumbling across this in the future, the escape that finally worked from me was not \&, but rather "\&" as in adb shell echo Macaroni "\&" Cheese and not adb shell echo Macaroni \& Cheese Hopefully this helps someone. For the record, this is on Windows. 来源： https://stackoverflow.com/questions/28468279/how-to-input

问题 I've been trying to determine (from within the event handler) which keyboard triggered the event. I've been using these two posts: http://www.cocoabuilder.com/archive/cocoa/229902-which-keyboard-barcode-scanner-did-the-event-come-from.html http://www.cocoabuilder.com/archive/cocoa/274586-getting-keyboard-type-carbon-vs-cg.html#274586 In the second article, the author successfully separate out his keyboards using a Carbon technique, but attempting the same trick using Cocoa fails. On my own

问题 I'm trying to see if the user has pressed a decimal separator in a text box, and either allow or suppress it depending on other parameters. The NumberdecimalSeparator returns as 46, or '.' on my US system. Many other countries use ',' as the separator. The KeyDown event sets the KeyValue to 190 when I press the period. Do I just continue to look for commas/periods, or is there a better way? 回答1: The call CultureInfo.CurrentUICulture.NumberFormat.NumberDecimalSeparator gets the decimal

问题 I have a small program that simulates ctr + c & ctr + v (copy & paste) events using the system keybd_event . The problem is that after the program runs the computer continues to act as if the ctrl key is pressed down and then - if I type a it selects the whole document, if I roll the mouse wheel it changes the text side, etc. It happens not only in Visual Studio editor, but in any other program that was opened while the program ran as Word etc. Here is my code: //The system keyboard event.

问题 I'd like the user to be able to load the next or previous page when they press left or right on the keyboard. The next and previous links for each page are contained within two buttons. The html... <a href="/page-link-prev" class="prev button">< Prev</a> <a href="/page-link-next" class="next button">Next ></a> Some jquery I found that registers the right key presses, but doesn't change the url obviously, it just shows an alert. $(function() { $(document).keyup(function(e) { switch(e.keyCode)

问题 I'm trying to build an app that will accept keyboard input from a remote control that emulates a keyboard. I need to capture all keys from the remote, including volume up/down (it emulates a multimedia keyboard, fwiw). I can't figure out how to do that in a UWA. I've tried Windows.UI.Input.KeyboardDeliveryInterceptor and Windows.UI.Core.CoreWindow.GetForCurrentThread().KeyDown, which capture some input, but not all keys (it doesn't capture the special keys). I don't plan to include this app

问题 I am trying to understand how to handle various events with Qt and have found an issue I cannot understand with key modifiers e.g. Ctrl Shift Alt etc. I have made a default Qt GUI Application in Qt Creator extending QMainWindow and have found that the following example does not produce understandable results. void MainWindow::keyPressEvent(QKeyEvent *event) { qDebug() << "Modifier " << event->modifiers().testFlag(Qt::ControlModifier); qDebug() << "Key " << event->key(); qDebug() << "Brute

问题 I am trying to learn the Swift language, and I followed a lot of tutorials on Youtube. Since most of them are for iOS, I wanted to make the OSX version of this one: https://www.youtube.com/watch?v=8PrVHrs10to (SideScroller game) I followed it carefully but I am stuck at about 22 minutes of the video when I have to update the player position. My first problem was to get the pressed keys. I come from C# language, so I wanted to find something like If(Keyboard.GetState().IsKeyDown(Keys.Right))

问题 In my fabric application, I'm currently listening for certain key presses such as the delete key, and deleting any selected elements. My method of listening for key presses is: document.onkeydown = function(e) { if (46 === e.keyCode) { // 46 is Delete key // do stuff to delete selected elements } I'm running into a problem though: I have other elements like text boxes on the page, and when typing in a text box, I don't want the delete key to delete any elements. In this question, there's a